EMC1402-1-ACZL-TR SMSC, EMC1402-1-ACZL-TR Datasheet - Page 13

• Manufacturer Part Number: EMC1402-1-ACZL-TR
• Description: IC TEMP SNSR DUAL 3.3V 8MSOP
• Manufacturer: SMSC

Specifications of EMC1402-1-ACZL-TR

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• For Use With: EVB-EMC1402 - EVAL BOARD FOR EMC1402
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1067-2

1 -> 0
START
1°C Temperature Sensor with Beta Compensation
Datasheet
SMSC EMC1402
4.3
4.4
4.5
4.6
START
START
START
1 -> 0
1 -> 0
1 -> 0
1001_100
ADDRESS
SLAVE
The Read Byte protocol is used to read one byte of data from the registers as shown in
The Send Byte protocol is used to set the internal address register pointer to the correct address
location. No data is transferred during the Send Byte protocol as shown in
The Receive Byte protocol is used to read data from a register when the internal register address
pointer is known to be at the right location (e.g. set via Send Byte). This is used for consecutive reads
of the same register as shown in
The ALERT output can be used as a processor interrupt or as an SMBus Alert.
When it detects that the ALERT pin is asserted, the host will send the Alert Response Address (ARA)
to the general address of 0001_100xb. All devices with active interrupts will respond with their client
address as shown in
Read Byte
Send Byte
Receive Byte
Alert Response Address
RESPONSE
ADDRESS
ADDRESS
1001_100
1001_100
ADDRESS
WR
0001_100
0
SLAVE
SLAVE
ALERT
ACK
1
REGISTER
Table 4.6 Alert Response Address Protocol
ADDRESS
Table
XXh
Table 4.5 Receive Byte Protocol
WR
4.6.
RD
Table 4.3 Read Byte Protocol
Table 4.4 Send Byte Protocol
0
1
RD
1
ACK
Table
0
DATASHEET
4.5.
1 -> 0
START
ACK
ACK
ACK
13
0
0
0
1001_100
ADDRESS
SLAVE
REGISTER DATA
REGISTER
ADDRESS
1001_1000
ADDRESS
DEVICE
XXh
XXh
RD
1
ACK
1
Table
REGISTER
NACK
NACK
ACK
DATA
XX
0
1
1
Revision 1.36 (07-02-09)
4.4.
NACK
Table
1
STOP
0 -> 1
STOP
0 -> 1
STOP
0 -> 1
4.3.
0 -> 1
STOP